Black Widow's Red Room origins made her ledger redder than the bloodstained flag she once fought under. But do real-life assassins like Black Widow actually EXIST?

How close are you to being murdered by a real-life Russian Black Widow agent? Could an assassin with Natasha Romanoff's unique expertise be living among us? In this episode of The Big Question, Filup Molina and Erik Voss give you too much information about the real efforts the Russian military has invested in crafting the perfect assassin, spy, seductress, and literal supersoldier, and all the horrible crimes they have committed throughout history. What is the Marvel Red Room based on?